Patents by Inventor Clyde Sharik

Clyde Sharik has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Polymeric molding composition
    Patent number: 4522983
    Abstract: Polymeric composition having good impact resistance which comprises styrene, methylstyrene, a conjugated diene monomer, and optionally an unsaturated dicarboxylic acid anhydride, are described.
    Type: Grant
    Filed: March 9, 1983
    Date of Patent: June 11, 1985
    Assignee: Atlantic Richfield Company
    Inventors: Bi Le-Khac, Clyde Sharik
  • N,N-Dimethylacrylamide/2-acrylamido-2-methylpropane sulfonic acid copolymers for enhanced petroleum recovery
    Patent number: 4404111
    Abstract: A N,N-dimethylacrylamide/2-acrylamido-2-methylpropane sulfonic acid copolymer is disclosed. The copolymer is particularly suitable for use as a viscosity control agent in an aqueous composition employed to facilitate petroleum recovery from subterranean petroleum bearing formations.
    Type: Grant
    Filed: February 6, 1981
    Date of Patent: September 13, 1983
    Assignee: Atlantic Richfield Company
    Inventors: Le-Khac Bi, Mary E. Dillon, Clyde Sharik